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Greenbrier Group
The Greenbrier Limestone, also known locally as the "Big Lime", is an extensive limestone Geological unit, unit deposited during the Middle Mississippian age, Mississippian Epoch (345.3 ± 2.1 – 326.4 ± 1.6 Ma), part of the Carboniferous, Carboniferous Period. This stratum, rock stratum is present below ground in much of West Virginia and neighboring Kentucky, and extends somewhat into adjacent western Maryland and southwestern Virginia. The name derives from the Greenbrier River in West Virginia. Greenbrier Limestone is in some places more than 400 feet (120 metres) thick, allowing it to trap large quantities of oil and gas. Since this carbonate rock erodes quickly in the region's wet climate, outcrops are not prominent and are often quarried. The Greenbrier Limestone is subdivided into six stratigraphic units. In ascending order, they are Denmar Limestone, Taggard Shale, Pickaway Limestone, Union Limestone, Greenville Shale, and Alderson Limestone. The limestones in this i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinks Of Gandy
The Sinks of Gandy — also called the Sinks of Gandy Creek, or simply "The Sinks" — are a modestly celebrated cave and underground stream at Osceola in eastern Randolph County, West Virginia, United States. The Sinks are on private property within the Monongahela National Forest. Description The Sinks are a natural tunnel accommodating Gandy Creek, a tributary of Dry Fork, for about as it passes under a spur of Yokum Knob to reemerge on the opposite side of Randolph County Route 40 (Dry Fork Road). The southern (upstream) entrance to the Sinks, about wide and high, is in a low ledge of limestone in a large depressed meadow. It consists of a simple longitudinal passage, from 4 to high, with a few minor side passages, not much apparent from the main passage. The main cave passage averages 40 to wide, but in some places up to wide. In some sections the stream occupies the entire floor of the passage, but in other sections it is confined to a narrow trench. The northern (dow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |